Home / 20,220,440.24-27,897,394.20-11,512,451.40

Finding the Fourth Proportional to 20,220,440.24, 27,897,394.20 and 11,512,451.40

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Solution

The fourth proportional to 20,220,440.24, 27,897,394.20 and 11,512,451.40 is: 15,883,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,440.24 : 27,897,394.20 = 11,512,451.40 : x
  2. Step 2: Convert to fraction form
    20,220,440.24/27,897,394.20 = 11,512,451.40/x
  3. Step 3: Cross multiply
    20,220,440.24x = 27,897,394.20 × 11,512,451.40
  4. Step 4: Simplify right side
    20,220,440.24x = 321,167,394,914,141.88
  5. Step 5: Solve for x
    x = 321,167,394,914,141.88/20,220,440.24
  6. Step 6: Final answer
    x = 15,883,303.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.